| |
Species: |
Cat |
Strain/breeder: |
- |
Sex: |
Spayed female |
Age: |
9 years |
Study type: |
- |
Treatment: |
Surgical removement |
Animal status: |
Euthanized because of recurrency |
Clinical findings: |
|
Organ(s): |
Subcutane mass at the shoulder |
Macroscopic finding(s): |
Nodule of 7x5x6 cm in diamter, greyish-white surface; centraly cystic; no distinct border to surrounding tissue |
Staining: |
H&E |
|
|
Fig. 1 (87k)
Fig. 2 (88k)
Fig. 3 (60k)
|
|
Abstract
Feline vaccine-associated fibrosarcoma
T. BLEIER and M. REINACHER
Department of Veterinary Pathology, University of Giessen, Frankfurter Str. 96,
35392 Giessen, Germany
Key words: feline, fibrosarcoma, vaccination, giant cells
A spayed female European short hair cat (9 years) developed an expanding mass over a period of 6 month at the shoulder. The cat was vaccinated at this location one year before the tumour developed. Further data about previous vaccinations are unknown. The tumour was surgically removed.
Histologically a fibrosarcoma was diagnosed. The tumour consisted of pleomorphic cells, multinucleated giant cells, a large area of necrosis, and clusters of lymphocytes at the tumour periphery. Tumour cells exhibited a high mitotic rate of 4 per high power field.
Four weeks later the cat was euthanised because of tumour recurrency.
Together with the vaccination history, the histologic findings lead to the diagnosis of a vaccine-associated feline fibrosarcoma (COUTO et al. (2002), Vet Pathol 39: 33-41).
case index | << previous case | next case >>
|